Metallic cask.



0 B 0 2 hm e F d B t n e t a P H C 0 R B M 7 8 3 4 6 0 N METALLIC CASK.

(Application filed June 7, 1899.)

(No Model.)

INVENTOR:

m E s s L N w w m: NORRVS PETERS 004 PHOTGLI'THQ. WASHlNGTON, n c

7 UN TED STATES PATENT OFFICE.

MICHAEL BROCHU, OF GRAND RAPIDS, MICHIGAN.

M ETALLIC CASK.

SPECIFICATION forming part of Letters Patent No. 643,787, dated February 20,v 1900.

Application filed June 7,1899. Serial No. 719,6 l0. (N0 model.)

To all whom it may concern:

Be it known that I, MIOHAEL BROOHU, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Metallic Casks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in metallic casks; and its object is to provide a strong and durable structure that may be cheaply made and readily taken apart for cleaning, storage, or transportation and to provide the same with certain new and useful features hereinafter more fully described, and particularly pointed out in the claims.

My invention consists, essentially, in making the casks of two equal parts divided at the middle and formed, preferably, of stamped sheet metal,the open ends being provided with outwardly-projecting flanges concavo-convex in cross-section, a suitable round packing to fit the concave sides of theflanges, detached clamping-rings embracing the flanges, and reinforcing-rings in the angles of the parts, as will more fully appear in detail by reference to the accompanying drawings, in which- Figure 1 is a longitudinal section through the axis of a cask embodying my invention as it appears when assembled for use; Fig. 2, the respective ends of the body of the same nested for storage or transportation when out of use; Fig. 3, a detail showing the construction of the clamping-rings, and Fig. 4 a detail illustrating the arrangement of the parts when out of use and packed for storage or transportation.

Like letters refer to like parts in all of the figures.

packing.

sides of the flanges will be opposite each other and embrace the ring of packing C, which packing is round in cross-sectionto fit the concave sides of the flanges and made of any suitable material, preferably of rubber. attach these two halves to each other, I provide clamping-rings D and E, which rings are preferably united by male and female screwthreads. These rings engage the respective convex sides of the flanges B and have concave channels to fit the same and are also provided with transverse fins F on the outer side, which fins serve the double purpose of strengthening the rings and to form a point of attachment for the hook of a suitable spanner-wrench to turn the rings. These rings are not secured to the respective parts of the cask in any way and when detached from each other are readily detached from the respective halves of the cask.

In each part A a reinforcing-ring G, triangular in cross-section, is secured in the acute angle between the head and side of the same by means of rivets, as shown, which strengtl1= ens the structure at this point where most e'xposed, the thin metal otherwise being liable to be bent out of shape. By making the flanges concavo-convex, as shown, they are much stronger, and the edge of the packing is 'not exposed to the contents of the vessel, as

the angle between the flanges and side of the barrel may be brought in contact and the flanges sprung together enough to tighten the In fact, the packing may by this construction in many cases be left out altogether and this contact at the angles relied upon to form a tight joint. The engagement of the concave sides of the rings with the convex sides of the flanges secures the flanges from being pressed inward by any force applied to the side near the rings.

When out of use and packed for storage or shipment, the ring E is removed from the corresponding part of the cask and run on over the other part of the same with the packing between the rings, as shown in Fig. 4, and screwed upon the ring D in reverse relation. The rings will then protect the flanges and will not be easily separated from the balance of the cask.

It is obvious that this structure has the advantage of being readily cleaned, all the parts being devoid of holes or recesses difficult to cleanse.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A metal cask consisting of two stamped sheet-metal separable parts having integral concavo-convex flanges, and two detached clamping-rings, having concave channels to engage the convex sides of the flanges, and means for detachably securing the rings to each other, and having an acute angle between the head and side thereof, and a riveted ring in said angle, substantially as described.

2. In a metal cask composed of two separable parts of stamped sheet metal, and having an acute angle between the head and side scribed metal cask consisting of two separate parts of stamped sheet metal, having integral concavo-convex flanges around their open ends, and acute angles between the heads and sides, reinforcing-rings in said angles, rivets for securing the same and two detachable rings having screw-threads, fins, and concave channels, substantially as described.

Intestimony whereof I afiix my signature in presence of two witnesses.

MICHAEL BROOHU.

Witnesses:

LUTHER V. MoULroN, LEWIS E. FLANDERS. 

